The papillae located mainly on the tip and sides of the tongue that contain only a few taste buds each are the _______ papillae
A. papiform
B. filiform
C. fungiform
D. vallate
E. foliate
C
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The spongy tissue of the penis fills with blood during sexual excitement and causes the penis to enlarge and become rigid during ________
A) erection B) circumcision C) ejaculation D) emission E) parturition
Two cell types having the same type of receptor for a chemical messenger will always respond to that messenger in the same way
Indicate whether the statement is true or false.
Select the correct statement about cardiac output.
A) A slow heart rate increases end diastolic volume, stroke volume, and force of contraction. B) Decreased venous return will result in increased end diastolic volume. C) If a semilunar valve were partially obstructed, the end systolic volume in the affected ventricle would be decreased. D) Stroke volume increases if end diastolic volume decreases.
Which of the following statements is true regarding parasympathetic tone?
A) It might increase or decrease heart rate depending on the situation. B) It accelerates the resting heart rate above its intrinsic rate. C) It holds the resting heart rate below its intrinsic rate. D) It affects heart rate only after myocardial infarction. E) It does not affect heart rate.